Standard Horizon GX2355S Owner's manual

Brand: Standard Horizon

Model: GX2355S

Category: Two-way radios

Type: Owner's manual

This manual is also suitable for

Owner

s Manual

25 Watt VHF/FM

Marine Transceiver

SPECTRUM + GX2355S

A/B

H/L

PA/FOG

NAV

SCAN

MEM

CALL

SET

DISTRESS

16/9

SPECTRUM+

VOL/PWR

SQL

16/9

Submersible

DSC distress call automatically broadcasts lat/long and vessel ID

∗

MARITEL DSC telephone capability

DSC position request function and NMEA data input/output

Noise canceling Clear Voice Speaker microphone with channel selector

20 W Loud Hailer with Bells & Whistles

Latitude/Longitude and SOG/COG display

∗

Channel name capability

Versatile user-programmable scanning and priority scan

NOAA Weather Alert

One-button access to Channel 16 and 9

Access all US, Canadian and International channels

Big, back-lit display and keys

∗

with GPS attached

TABLE OF CONTENTS

FCC RADIO LICENSE INFORMATION ...... 1

STATION LICENSE ..................................... 1

RADIO CALL SIGN ...................................... 1

CANADIAN SHIP STATION LICENSING .... 1

FCC NOTICE ................................................ 2

1 GENERAL INFORMATION ................. 3

1.1 INTRODUCTION ................................. 3

1.2

FCC/ INDUSTRY CANADA INFORMATION ..

2 ACCESSORIES .................................... 4

2.1 PACKING LIST .................................... 4

2.2 OPTIONS ............................................. 4

3 CONTROLS AND INDICATORS ......... 5

3.1 CONTROLS AND CONNECTIONS .... 5

4 INSTALLATION ................................. 10

4.1 LOCATION ......................................... 10

4.2 ELECTRICAL CONNECTIONS ......... 10

4.3 ACCESSORY CABLE ....................... 11

4.3.1 Cable pin number and signal ..... 11

4.4

CMB16 FLUSH MOUNT INSTALLATION ...

5 BASIC OPERATION .......................... 13

5.1 RECEPTION ...................................... 13

5.2 TRANSMISSION ................................ 13

5.3

TRANSMIT TIME - OUT TIMER (TOT) ...

5.4 SIMPLEX/DUPLEX CHANNEL USE ... 14

5.5 USA, CANADA, AND INTERNATIONAL

MODE ................................................ 14

5.6 NOAA WEATHER CHANNELS ......... 15

5.7 NOAA WEATHER ALERT ................. 15

5.8 MEMORY SCANNING (M-SCAN) ..... 16

5.9 PRIORITY SCANNING (P-SCAN) .... 16

5.10 CHANNEL A /B INSTANT CALL ....... 17

5.10.1 Storing new channel A/B ............ 17

5.10.2 Changing the stored channel A/B .. 17

5.10.3 Operating the channel A/B ........ 17

5.11.PA/FOG OPERATION ....................... 17

5.11.1 Operating the PA HAIL mode ..... 18

5.11.2 Operating the FOG HORN mode 18

5.12 NAVIGATION INDICATION ............... 19

5.13 VOICE SCRAMBLER ........................ 19

5.13.1 Operation with voice scrambler .. 19

5.14 RESETTING THE TRANSCEIVER’S

MICROPROCESSOR ........................ 20

6 DIGITAL SELECTIVE CALLING ....... 21

6.1 GENERAL .......................................... 21

6.1.1 Digital Selective Calling (DSC) ... 21

6.1.2 Maritime Mobile Service Identity

(MMSI) ........................................ 21

6.2 SENDING A DISTRESS CALL .......... 22

6.2.1 Sending a Distress Call

Automatically............................... 22

6.2.2 Sending a Distress Call and

Manually Inputting a Position ..... 23

6.3 SENDING A DISTRESS CALL WITH

NATURE OF DISTRESS ................... 24

6.4 SENDING AN INDIVIDUAL CALL ..... 25

6.5 SENDING A GROUP CALL ............... 26

6.6 SENDING AN ALL SHIPS CALL ....... 27

6.7 MARITEL DSC TELEPHONE CALL .... 28

6.7.1 Sending a Ship to Shore Call ..... 28

6.7.2 Receiving a Shore to Ship Call .. 29

6.7.3 Resend Telephone Call Signal ... 29

6.7.4 Resend Telephone Call When

Receive Busy Signal ................... 29

6.8 DSC STANDBY ................................. 30

6.9 CALL WAITING DIRECTORY ........... 30

6.9.1

Operation of Distress Call Waiting .

6.9.2

Operation of Individual Call Waiting ..

6.10 POSITION REQUEST ....................... 32

6.11 POSITION SEND ............................... 33

6.12 RECEIVING DSC CALLS .................. 34

6.12.1 Receiving a distress call ............. 34

6.12.2 Receiving a distress relay call .... 35

6.12.3 Receiving an all ships call .......... 35

6.12.4

Receiving a geographical area call ..

6.12.5 Receiving an individual call ........ 36

6.12.6. Receiving a position request ...... 36

7. DSC / RADIO SETUP MODE ............ 37

7.1 SETUP ............................................... 37

7.2 LAMP ADJUSTING ............................ 37

7.3 LCD CONTRAST ............................... 37

7.4 CH NAMING ...................................... 38

7.5

INDIVIDUAL DIRECTORY SETUP (DSC) ..

7.6

DSC TELEPHONE DIRECTORY ID INPUT ...

7.7 POSITION REQUEST REPLY TYPE ... 41

7.8 VOICE SCRAMBLER ........................ 42

7.9 KEY BEEP (ON OR OFF) ................. 43

7.10 INDIVIDUAL RING ............................. 43

7.11 TIME OFFSET ................................... 44

7.12 USER MMSI INPUT ........................... 45

7.13 GROUP MMSI INPUT ....................... 46

7.14 DSC SCANNING ............................... 47

TO CHANGE DSC SCAN METHOD: ..... 47

8 RAM MIC OPERATION ..................... 48

8.1 RAM MIC CONTROLS AND

CONNECTIONS ................................ 48

8.2 INDICATORS ..................................... 50

8.3 INTERCOM OPERATION ................. 51

8.3.1 Communication ........................... 51

8.3.2 Calling ......................................... 51

9 OPERATING PRACTICES ................ 52

9.1 EMERGENCY (CHANNEL 16 USE) ... 52

9.2 CALLING ANOTHER VESSEL

(CHANNEL 16 OR 9) ......................... 52

9.3 MAKING TELEPHONE CALLS ......... 53

9.4

OPERATING ON CHANNELS 13 AND 67

... 54

9.5 PROHIBITED COMMUNICATIONS ... 54

9.6 NOAA WEATHER ALERT TESTING ... 54

9.7

DIGITAL SELECTIVE CALLING (DSC) ..

9.7.1 USCG DSC Watch ...................... 55

9.8 MARITIME MOBILE SERVICE

IDENTITY (MMSI) .............................. 55

9.8.1 What is a MMSI? ........................ 55

9.9 USING DIGITAL SELECTIVE CALLING

FEATURES ........................................ 55

9.9.1 Distress Call ................................ 55

9.9.2 Individual Call ............................. 55

9.9.3 Group Call ................................... 56

9.9.4 Urgency Call ............................... 56

9.9.5 Safety Call ................................... 56

9.9.6 Position request .......................... 56

9.9.7 Telephone Call ............................ 56

9.10 ADDITIONAL DIGITAL SELECTIVE

CALLING INFORMATION ................. 56

9.11 ABOUT VHF RADIO .......................... 56

9.12 SELECTING AN ANTENNA .............. 57

9.13 COAXIAL CABLE .............................. 57

10 MAINTENANCE ................................. 58

10.1 REPLACEMENT PARTS ................... 58

10.2 FACTORY SERVICE ......................... 59

10.3 TROUBLESHOOTING CHART ......... 60

10.4 CONNECTION OF GPS WITH NMEA

OUTPUT ............................................ 61

11. CHANNEL ASSIGNMENTS .............. 62

12. WARRANTY ....................................... 66

13 SPECIFICATIONS ............................. 69

13.1 GENERAL .......................................... 69

13.2 TRANSMITTER ................................. 69

13.3 RECEIVER ......................................... 69

13.4 DSC .................................................... 70

GX2355S Owner’s Manual page 1

ON-LINE WARRANTY REGISTRATION

Please visit www.standardhorizon.com to register the SPECTRUM+

Marine VHF. It should be noted that visiting the Web site from time to

time may be beneficial to you, as new products are released they will

appear on the STANDARD HORIZON Web site.

PRODUCT SUPPORT INQUIRIES

If you have any questions or comments regarding the use of the

SPECTRUM+, you can visit the STANDARD HORIZON Web site to

send an E-Mail or contact the Product Support team at 562/404-2700

M-F 7:00-5:00PST.

FCC RADIO LICENSE INFORMATION

Standard Horizon radios comply with the Federal Communication Commission (FCC)

requirements that regulate the Maritime Radio Service.

STATION LICENSE

An FCC ship station license is no longer required for any vessel traveling in U.S. waters

which uses a VHF marine radio, RADAR or EPIRB, and which is not required to carry radio

equipment. However, any vessel required to carry a marine radio on an international voyage,

carrying a HF single side band radiotelephone or marine satellite terminal is required to

carry a license. FCC license forms, including applications for ship (506) and land station

licenses can be downloaded via the Internet at www.fcc.gov/forms. To obtain a form from

the FCC, call (888) 225-5322.

RADIO CALL SIGN

Currently the FCC does not require recreational boaters to have a Ship Radio Station

License. The USCG recommends the boats registration number and the state to be used.

CANADIAN SHIP STATION LICENSING

You may need a license when traveling in Canada. If you do need a license contact

their nearest field office or regional office or write:

Industry Canada

Radio Regulatory Branch

Attn: DOSP

300 Slater Street

Ottawa, Ontario

Canada, KIA 0C8

page 2 Owner’s Manual GX2355S

FCC NOTICE

NOTICE

Unauthorized changes or modifications to this equipment may void

compliance with FCC Rules. Any change or modification must be

approved in writing by STANDARD HORIZON.

NOTICE

This equipment has been tested and found to comply with the limits for

a Class B digital device, pursuant to Part 15 of the FCC Rules. These

limits are designed to provide reasonable protection against harmful

interference in a residential installation. This equipment generates,

uses and can radiate radio frequency energy and, if not installed and

used in accordance with the instructions, may cause harmful

interference to radio communications. However, there is no guarantee

that interference will not occur in a particular installation. If this

equipment does cause harmful interference to radio or television

reception, which can be determined by turning the equipment off and

on, the user is encouraged to try to correct the interference by one or

more of the following measures:

— Reorient or relocate the receiving antenna.

— Increase the separation between the equipment and receiver.

— Connect the equipment into an outlet on a circuit different from

that to which the receiver is connected.

— Consult the dealer or an experienced radio/TV technician for help.

GX2355S Owner’s Manual page 3

1 GENERAL INFORMATION

1.1 INTRODUCTION

The STANDARD HORIZON GX2355S is a VHF/FM transceiver designed

for use in the frequency range of 156.025 to 163.275 MHz. The GX2355S

requires 13.8V for operation and has a switchable RF output power of 1

watt or 25 watts.

The transceiver is capable of RTCM SC101 DSC (Digital Selective Calling)

operation and intercom operation with the use of an optional RAM mic

(CMP23 remote-control speaker/microphone with display).

The transceiver operates on all currently-allocated marine channels which

are switchable for use with either USA, International, or Canadian

regulations. It has an emergency channel 16 which can be immediately

selected from any channel by pressing the red 16/9 key. NOAA Weather

channels can also be accessed immediately by pressing the WX key with

channel selection.

Other features of the transceiver include: scanning, priority scanning,

public address (PA) mode, submersible noise-canceling speaker mic, high

and low voltage warning, and GPS repeatability.

1.2 FCC/ INDUSTRY CANADA INFORMATION

The following data pertaining to the transceiver is necessary to fill out the

license application.

Type Acceptance ................................................................... FCC Part 80

Output Power .......................................... 1 Watt (low) and 25 Watts (high)

Emission..................................................................... 16K0F3E, 16K0G3E

Frequency Range................................................ 156.025 to 163.275 MHz

FCC Type Number ............................................................... K66GX2350S

Industry Canada Type Approval .......................................... 511822205AV

page 4 Owner’s Manual GX2355S

2 ACCESSORIES

2.1 PACKING LIST

When the package containing the transceiver is first opened, please check

it for the following contents:

• GX2355S SPECTRUM + Transceiver (White/Black)

• CMP351W/CMP351B (White/Black Microphone attached to the

transceiver) and hanger kit

• Mounting Bracket and attaching hardware

• Spare Fuse (6 A, 250 V )

• Owner’s Manual

• Quick-Reference Card

• Accessory Cable

• Power Cord

• Dust Cover

2.2 OPTIONS

CMB16 ...................................................................... Flush-Mount Bracket

CMP23 ................. Remote-Access Microphone (RAM Mic, Black / White)

CAW23 ............................................ 10-foot Extension Cable for RAM Mic

CVS2500 .......................................................................... Voice Scrambler

101S ...................................................................... Mini Extension Speaker

201S ................................................................... White Extension Speaker

201SZ............................................ White Flush Mount Extension Speaker

201SBK .............................................................. Black Extension Speaker

201SBKZ ........................................ Black Flush Mount Extension Speaker

220SW ...........................................................4.5" Round Hailer / PA Horn

240SW ............................................. 5" X 8" Rectangular Hailer / PA Horn

GX2355S Owner’s Manual page 5

3 CONTROLS AND INDICATORS

NOTE

This section defines each control of the transceiver. See Figure 1 for

location of controls. For detailed operating instructions refer to chapter

4 of this manual.

3.1 CONTROLS AND CONNECTIONS

q POWER SWITCH/VOLUME CONTROL

Turns the transceiver on and off as well as adjusts the audio volume. To

turn the transceiver on press and hold this knob until the LCD turns on.

To turn it off, press and hold this knob until the LCD turns off. When the

power is turned on, the transceiver is set to the last selected channel.

Secondary Use

When the transceiver is turned on while the SCAN and WX keys are held

down, the internal microprocessor is reset. This clears the memory and all

user-programmed settings, such as scan memory, priority scan

assignments, and A/B channel assignments. This condition is known as

the default condition, the same as when shipped from the factory. For a

list of these defaults, see the section on Resetting the Transceiver’s

Microprocessor.

NOTE

Resetting the microprocessor will not erase DSC MMSI and Directory

Call Waiting information.

w SQUELCH CONTROL (SQL)

Sets the point at which random noise on the channel does not activate

the audio circuits but a received signal does. This point is called the

squelch threshold. Further adjustment of the squelch control will

degrade reception of wanted transmissions.

e KEY PAD

16/9 Key

Immediately recalls channel 16 from any channel location. Holding

down this key recalls channel 9. Pressing the 16/9 key again reverts to

the previous selected working channel.

Secondary use

Please see secondary use for the WX and MEM key.

page 6 Owner’s Manual GX2355S

Figure 1. Controls and Connectors

16/9

16 9

UIC

A/B

H/L NAV

MEM

SCAN

PA/FOG

CALL

SET

DISTRESS

PULL OPEN

SPECTRUM+

VOL / PWR

SQL

PA VOL

GX2355S Owner’s Manual page 7

WX Key

Immediately recalls the previously selected NOAA weather channel

from any channel location.

Secondary use

1. Holding down the 16/9 key while pressing the WX key changes the

mode from USA to International or Canadian.

NOTE

If position is displayed, this icon will be hidden.

2. Holding down the WX and SCAN key while turning the power on resets

the microprocessor and erases scan channels from memory. This clears

the memory and establishes the factory-set defaults. For a list of these

defaults, see the section on Resetting the Transceiver’s Microprocessor.

SCAN Key

1. Starts and stops scanning of programmed channels.

2. If held while the UP or DOWN keys on the mic case are pressed or

Channel Selector knob on radio is turned, the radio will show the

channels in scan memory. This function will not work if the unit is scanning.

NOTE

There is only one priority channel. However, it can be assigned to a

channel other than WX and CH70. The priority channel is marked with

P-CH on the LCD.

MEM Key

Memorizes the selected channel into the transceivers scan memory for

scanning. When pressed again, it DELETES the channel from the scan

memory.

Secondary use

The MEM key is also used to select a priority channel.

1. Select the desired channel.

2. Press and hold the MEM key until the display shows P-CH.

NOTE

If position is displayed, this icon will be hidden.

DISTRESS Key

To send the distress call see section 6.2, (Sending a Distress Call).

PA/FOG key

Available to operate the PA function or the FOG HORN function

page 8 Owner’s Manual GX2355S

A/B Key

Immediately recalls two user assigned channels from any channel.

CALL/SET Key

The CALL/SET key functions as the enter key.

Secondary use

Press the CALL/SET key to access the DSC OPERATION menu. The

following DSC functions can be accessed from the DSC OPERATION

menu; INDIVIDUAL, GROUP, ALL SHIPS, TELEPHONE, STANDBY,

CALL WAIT, POS REQUEST and POS SEND.

Press and hold the CALL/SET key to access the SETUP menu. The

following functions can be accessed in the SETUP menu; LAMP ADJUST,

CONTRAST, CH NAME, INDIV DIR, TELEPHONE MEMORY ID, POS

REPLY, SCRAMBLER, KEY BEEP, INDIV RING, TIME SET, USER

MMSI, GROUP MMSI, DSC SCAN.

H/L Key

Toggles between high and low power. When the H/L key is pressed

while the transceiver is on channel 13 or 67, the power will temporarily

switch from LO to HI power until the PTT is released. The H/L key does

not function on transmit inhibited and low power only channels.

NAV / IC Key

1. Pressing this key, when connected to the GPS receiver, the LCD

displays position data, Date, Time, SOG (Speed Over Ground) and

COG (Course Over Ground) from the GPS.

2. Press and hold down this key, when the optional RAM Mic is

connected. Intercom operation will operate between radio and RAM

Mic.

r CHANNEL SELECTOR KNOB

Rotary knob used to select channels and, to choose the item selection

of different functions (DSC operation, PA/FOG operation and etc.). The

CH key on the microphone can also be used to select them.

Secondary Use

While holding down the SCAN Key and turning the Channel Selector

knob, you can confirm memory channels for scanning.

t RAM MIC CONNECTOR

Connects the Remote Access Microphone (RAM MIC). Refer to

“section 8.0, (RAM MIC OPERATION).

GX2355S Owner’s Manual page 9

y ACCESSORY CONNECTION CABLE

Connects the radio to a GPS, external PA horn, and an external

speaker.

u DC INPUT CABLE

Connects the radio to a DC power supply of 13.8V

i ANTENNA JACK

Connects an antenna to the transceiver. Use a marine VHF antenna

with an impedance of 50 ohms.

o PTT (Push-To-Talk) SWITCH

Keys the transmitter when the transceiver is in radio mode. If the

transceiver is in the intercom operation mode, it activates the

microphone for the intercom.

!0 CLEAR VOICE NOISE-CANCELING SPEAKER MIC

Transmits the voice message with reduction of background noise.

!1 UP and DOWN KEYS

The UP and DOWN on the mic function the same as the Channel

Selector knob on the front panel of the transceiver.

!2 16/9 Key

Pressing the 16/9 key Immediately recalls channel 16 from any

location. Press and hold the 16/9 key to recall channel 9. Pressing the

16/9 key again reverts the radio to the previous select channel.

!3 MICROPHONE SPEAKER

The same audio heard through internal radio speaker as heard through

microphone speaker.

page 10 Owner’s Manual GX2355S

GPS Navigation Receiver

Accessory cable

4 INSTALLATION

4.1 LOCATION

1. The radio can be mounted at any angle. Choose a mounting

location that:

• is far enough from any compass to avoid any deviation in compass

reading due to the speaker magnet

• provides accessibility to the front panel controls

• allows connection to a power source and an antenna

• has nearby space for installation of a microphone hanger

• the antenna must be mounted at least 3 feet from radio

4.2 ELECTRICAL CONNECTIONS

CAUTION

Reverse polarity connections will damage the radio!

Connect the power cord and antenna to the radio. Antenna and Power

Supply connections are as follows (see Figure 2):

1. Mount the antenna at least 3 feet away from the radio. At the rear of

the radio, connect the antenna cable. It must have a PL259

connector. RG-8/U coaxial cable must be used if the antenna is 25

feet or more from the radio. RG58 cable can be used for distances

less than 25 feet.

HI USA

GPS Chart 150

A/B

H/L

PA/FOG

NAV

CAN

CALL

DISTRESS

16/9

SPECTRUM+

VOL/PWR

SQL

16/9

Optional Speaker

Antenna

Water proof

Deck Outlet

Power Source

Black

Red

Fuse

Figure 2. General Installation

GX2355S Owner’s Manual page 11

4.3 ACCESSORY CABLE

4.3.1 Cable pin number and signal

NMEA 0183 Version (1.5 to 2.3 ) Input Sentences:

GLL – Geographic Position–Longitude/Latitude

RMC – Recommended Minimum Specific GNSS Data

NMEA 0183 Version (2.3) Output Sentences:

DSC – Digital Selective Calling Information

DSE – Expanded Digital Selective Calling Information

When connecting the external speaker or GPS navigation receiver, strip off

about 1 inch (2 cm) of the specified wire’s insulation.

NOTE

Never short wires. This may lead to malfunctions.

Pin number

Signal

External speaker (+)

External speaker (–)

PA (+)

NMEA IN (+)

PA (–)

NMEA IN (–)

NMEA OUT (–)

NMEA OUT (+)

2. Connect the red power wire to a 13.8 VDC ± 20% power source.

Connect the black power wire to a negative ground.

3. If an optional remote extension speaker is to be used, refer to

section 4.3 for connections.

4. It is advisable to have a Certified Marine Technician check the

power output and the standing wave ratio of the antenna after

installation.

White: External speaker (+)

Yellow: External speaker (–)

Blue:

NMEA IN (+) of GPS navigation receiver

Green:

NMEA IN (–) of GPS navigation receiver

Brown:

NMEA OUT (–) to Standard Horizon GPS

∗

Gray:

NMEA OUT (+) to Standard Horizon GPS

∗

Black: PA (–)

Red: PA (+)

To external speaker, PA speaker and GPS receiver

To GX2355S

∗

1: Connecting these wires to Standard Horizon GPS to show a DSC Position

Request, Position Send or Distress Call on the display of the GPS.

page 12 Owner’s Manual GX2355S

Bracket

adjusting screw

Lock-washer nut combination

Figure 3. CMB16 Flush Mount Installation

4.4 CMB16 FLUSH MOUNT INSTALLATION

1. Make a rectangular template for the flush mount measuring 2-1/8" H

x 5-3/4" W.

2. Use the template to mark the location where the rectangular hole is

to be cut. Confirm the space behind the dash or panel is deep

enough to accommodate the transceiver (at least 6 inches deep).

There should be at least 1/2 inch between the transceiver’s heatsink

and any wiring, cables or structures.

3. Cut out the rectangular hole and insert the transceiver.

4. Fasten the brackets to the sides of the transceiver with the lock

washer nut combination, so that the mounting screw base faces the

mounting surface (see Figure 3).

5. Turn the adjusting screw to adjust the tension so that the

transceiver is tight against the mounting surface.

GX2355S Owner’s Manual page 13

5 BASIC OPERATION

5.1 RECEPTION

1. After the transceiver has been installed, ensure that the power

supply and antenna are properly connected.

2. Press and hold the VOL/PWR knob until the radio turns on.

3. Turn the SQL knob fully counterclockwise. This state is known as

“squelch off”.

4. Turn up the volume until noise or audio from the speaker is at a

comfortable level.

5. Turn the SQL knob clockwise until the random noise disappears.

This state is known as the “squelch threshold.”

6. Press the UP or DOWN key to select the desired channel. Refer to

the channel chart (section 11 CHANNEL ASSIGNMENTS) for

available channels.

7. When a message is received, adjust the volume to the desired

listening level. The “BUSY” indicator in the LCD is displayed

indicating that the channel is being used.

5.2 TRANSMISSION

1. Perform steps 1 through 6 of RECEPTION.

2. Before transmitting, monitor the channel to ensure it is clear. THIS

IS AN FCC REQUIREMENT!

3. Press the PTT (push-to-talk) switch. The TX indicator on the LCD is

displayed.

4. Speak slowly and clearly into the microphone.

5. When the transmission is finished, release the PTT switch.

NOTE

This is a noise-canceling microphone. The oval slot on the top front of

microphone should be positioned within 1 inch (2 cm) from the mouth

for optimum performance.

6. Refer to the section 9 OPERATING PRACTICES for standard

transceiver operating procedures.

page 14 Owner’s Manual GX2355S

5.3 TRANSMIT TIME - OUT TIMER (TOT)

When the PTT switch on the microphone is held down, transmit time is

limited to 5 minutes. This prevents unintentional transmissions. About 10

seconds before automatic transmitter shutdown, a warning beep will be

heard from the speaker(s). The transceiver will automatically go to receive

mode, even if the PTT switch is continually held down. Before transmitting

again, the PTT switch must first be released and then pressed again.

5.4 SIMPLEX/DUPLEX CHANNEL USE

Refer to the channel chart (section 11 CHANNEL ASSIGNMENTS) for

instructions on use of simplex and duplex channels.

NOTE

All channels are factory-programmed in accordance with FCC (USA),

Industry Canada (Canada), and International regulations. Mode of

operation cannot be altered from simplex to duplex or vice-versa.

5.5 USA, CANADA, AND INTERNATIONAL MODE

1. To change the modes, hold the 16/9 key and press the WX key. The

mode changes from USA to International to Canadian with each

press of the WX key.

2. USA will be displayed on the LCD for USA mode, INTL will be

displayed for International mode, and CAN will be displayed for

Canadian mode.

3. Refer to the channel chart (section 11 CHANNEL ASSIGNMENTS)

for allocated channels in each mode.

GX2355S Owner’s Manual page 15

5.6 NOAA WEATHER CHANNELS

1. To receive a NOAA weather channel, press the WX key from any

channel. The transceiver will go to the last selected weather

channel.

2. Turn the Channel Selector knob on the radio or on the microphone

to select a different NOAA weather channel.

3. To exit from the NOAA weather channels, press the WX key. The

transceiver returns to the channel it was on prior to a weather

channel.

5.7 NOAA WEATHER ALERT

In the event of extreme weather disturbances, such as storms and

hurricanes, the NOAA (National Oceanic and Atmospheric Administration)

sends a weather alert accompanied by a 1050 Hz tone and subsequent

weather report on one of the NOAA weather channels. The transceiver is

capable of receiving this alert if the following is performed:

1. Program NOAA weather channels into the transceiver’s memory for

scanning. Follow the same procedure as for regular channels under

Section 5.8.

2. Press the SCAN key once to start memory scanning or hold down

the SCAN key during memory scanning to start priority scanning.

3. The programmed NOAA weather channels will be scanned along

with the regular-programmed channels. However, scanning will not

stop on a normal weather broadcast unless a NOAA alert is

received.

4. When an alert is received on a NOAA weather channel, scanning

will stop and the transceiver will emit a loud beep to alert the user of

a NOAA broadcast.

5. Press the WX key to stop the alert tone and receive the weather

report.

NOTE

If the WX key is not pressed the alert tone will be emitted for 5 minutes

and then the weather report will be received.

page 16 Owner’s Manual GX2355S

P-CH.MEM CH. CH. 70MEM CH.CH. 70 P-CH.

(When DSC scaning

is available)

(When DSC scaning

is available)

5.8 MEMORY SCANNING (M-SCAN)

NOTE

• During scanning, the dot matrix area of the LCD will show M-SCAN or

P-SCAN depending on the scan mode selected.

• The channel numbers programmed will cycle on the LCD.

• If position is displayed this icon will be hidden.

1. Adjust the SQL knob until background noise disappears.

2. Select a desired channel to be scanned using the Channel

Selector knob. Press the MEM key, MEM will appear on the LCD

which indicates the channel has been programmed into the

transceivers memory.

3. Repeat step 2 for all the desired channels to be scanned.

4. To DELETE a channel from the transceiver’s memory, press the

MEM key, MEM will disappear in the LCD.

5. To start scanning, press the SCAN key. Scanning will proceed from

the lowest to the highest programmed channel number and will stop

on a channel when a transmission is received.

6. The channel number will blink during reception.

7. To stop scanning, press the SCAN, 16/9, WX, or PTT key.

5.9 PRIORITY SCANNING (P-SCAN)

1. Any channel can be set as the priority channel, other than weather

channels and channel 70. To set the priority channel, select the

desired channel. Press and hold down the MEM key until P-CH is

shown on the display.

2. To select priority scanning, hold down the

SCAN key until P-SCAN appears on the LCD

during memory scanning. Scanning will proceed

between the memorized channels and the

priority channel. The priority channel will be

scanned after each programmed channel.

BUSY HI USA

M–SCAN

VTS

MEM HI USA

P–SCAN CH16

GX2355S Owner’s Manual page 17

BUSY HI USA

T/W CH16

VTS

3. The scanning will be performed while receiving

the MEM CH (memorized channel).

4. To stop scanning, press the SCAN, 16/9, WX, or PTT key.

NOTE

Triple watch (T/W) means the radio is watching CH70 for DSC Calls.

Dual watch (D/W) means the radio is not watching CH70 for DSC Calls.

5.10 CHANNEL A /B INSTANT CALL

Two calling channels (used by an organization or a favorite channel)

can be preset. But USA channels 9 and 16, and WX channels should

not be assigned as A or B channels because they are readily available

with the 16/9 and WX keys. If the A/B key is pressed and no channel A

or B has been assigned, the alert signal will be present.

5.10.1 Storing new channel A/B

1. Press and hold down the A/B key and rotate the Channel Selector

knob to select the desired channel.

2. Release the A/B key to store a desired channel as channel A/B.

3. Repeat steps to program second channel A/B.

5.10.2 Changing the stored channel A/B

1. Press the A/B key for memorized channel to appear.

2. Press and hold down the A/B key and rotate the Channel Selector

knob to select the desired channel.

3. Release the A/B key to store a desired channel as channel A/B.

NOTE

The stored channels will delete in microprocessor resetting mode only.

5.10.3 Operating the channel A/B

Pressing the A/B key more than once toggles between channel A,

channel B and the channel that was received on.

5.11.PA/FOG OPERATION

PA HAIL mode:

PA HAIL mode allows the transceiver to be used as a power hailer when an

optional 4 ohm hailer speaker is installed. The Hail mode has a listen-back

feature which provides two way communication through the hailer speaker.

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Standard Horizon GX2355S Owner's manual

Brand: Standard Horizon

Model: GX2355S

Category: Two-way radios

Type: Owner's manual

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